Trolley for electric-railway cars.



' Patented Dec. 9. I902.

No. 7I5,7|4. 4

L. E. w LKms. TBDLLEY FOB ELECTRIC RAILWAY CARS.

ion filed Jan. 9, 1900. Renewal Sept. 90, 1902) (No Model.)

7 2 Sheets-8heef I.

- Patented 090-. 9.1982. I

, L. E. WALKlNS.

TBOLLEY FOR ELECTRIC RAILWAY CARS.

(No Model.)

UNKTED STATES Application filed January 9, 1900. Renewed Septe To all whom it may; noncm'n:

Be it known that I, LOUIS E. NALKINS, a citizen of the United States of \merica,'and a resident of Springfield, in the county ofllampden and Stateof Massachusetts, have invented certain new and useful Improvements in Trolleys for Electric-Railway Cars, of which the followingis a full, clear, and ex; I act description.

This invention relates t improvements in a shoe or current-collecting trolley for usein an electric-railway system, and more particularly to a trolley desigiied to be engaged and movable with the truck of the motorcar below the same and to have running contact on the live wire of an underground or conduit electric railway.

The object of the inventionis to provide a trolley for the application indicated which is especially available on double conductors, always conforming thereto, not-withstanding variations in the height thereof or curves in the course thereof.

The invention consists in a shoe or trolley and the combination thereof with the truck' and the electric-current conductors, all substantially as will hereinafter fully appear and be set forth in the claims.

Reference is to be had to the accompanying drawings, in whie Figure is a sectional elevation lOHglilb dinally of the conduit-railway, showing the truck running thereon and the trolley, this view also representing the current-conductors and power connections. Fig. 2 is a planview of the improved trolley and the double electric conductors on which the trolley runs, the conduit being understood'as, broken out in horizontal section on a plane above the level of the conductor-wires; Fig, 3 is a cross-sectional-view of the conduit-railway, the trolley being shown in front end view.. Fig. 4 is a plan view of the runner-wheel of the trolley. v Similar characters of reference indicate corresponding parts in all of the views. l In the drawings, A represents the usual track-rails of thestreet or other railway, way between which is the conduit '15, ofan ordinary character, longitudinally running, in which below the central slot a are the electrio-current conductors I) a slot into the conduit member 19.

LOUIS E. WALKINS, OF SPRINGFIELD, MASSACIIUSETTS.

TsoLLsY FGR ELEGT RlC-RA\LWAY CARS.

3PECIFICATION forming part of Letters Patent No. 715,714, dated December 9, i902.

mt 20,1902. sernino.124,25s. liomotlel.)

I), both of which, as shown, may be feed-vires.

0 represents the dynamo or generator-,having connection with which is the feed-wire c, running therefrom to the connection with both trolleywires b b, which .are supported above the bottom of the conduit by the brackets (l d.

0 represents the return-wire,extending from the car-track rail A hack to the dynamo.

D represents the motor-truck, on which, located atf, are the motors,as usual. tor-truck comprises suitable frameworks or supports, which may be of any suitable form or construction, for centrally supporting the depending bar g, which extends through the and with which is engaged 01' connected the trolley pending bar g has at its lower end the plate 9 to which are bolted or riveted the shells or half-sections h h, which comprise the socket 7L2, in which is engaged the spherical end i of the bar or frame j, which comprises opposite or duplicated upper and lower members 1012, between which are the opposite side pedestals (indicated at 13) for the jour- 'nal-boxcs l of the axle or gudgeons 15 of the trolley-wheel m, which latter comprises the opposite sidehub-like bearing portions 16 16, the central flange 17, and the gudgeon 15. A spring is applied in the opening within the pedestal at each side of the-supporting-frame of the trolley for exerting a downward pressure on the trolcy-wheel. The top member of tlietrolley is endwise entended beyond the trolley-wheel in a direction opposite to its bali-and-socket connection in the weighted The plate g has as an ent'ension thereof the bar or member 9', extended over and normally separated from the top of the flange 17 of the trolley-wheel.

It being understood that the m y y with the meters of the car, it being understood that he controller intervenes and that the motor or motors ot the car are'by the Wiring 2 conneetedfor the'return of the current. through the car-wheel axle 'w, car- Wheel, and track-rail, it will be apparent in what manner the current from the dynamo to the trolley-wire is taken through the mo- The 1110- trolley-wheel is in electric connectionthrough the wiring too extended from the truck, and a bar 2 warm ble parallel electric conductors b b, of the motcr-truck comprising a member depending through the slot into the conduit, a trolley comprising a wheel having double bearing; portions 16, 1b, to run on the said conductors, and'the intermediate flange 17, and the trolley-frame having a ball-and-socket connection with and extended horizontally endwise beyond the said depending member, substantially as described.

3. In an electric-railway system, thecombination with the slotted conduit and the donble parallel electric conductors b b, of the motor-truck comprising the member y depending through the slot into the conduit, a trolley, comprising a wheel having double bearing portions 16, 16, to run on the said conductors, and the intermediate flange 17, and the trolley-frame having'a ball-and socket connection with and extended horizontally endwis'e beyond the said depending member, and the bar g supported by and extended longitudinally beyond the member 9, over the meet the trolley-wheel, substantially as described.

Signed by me at Springfield, Massachusetts, in presence of two witnesses.

. LOUIS E. l/VALKINS.

tor by way of the trolley, there being no new arrangements or provisions for the course of the current under this invention, which relates to the mechanical construction and action of the trolley itself, which, as apparent, by reason of the ball-and-socket connection at 7 t' can not only give laterally, but also vertically, within limits, as regulated by the distance which the part 9 is above the top of the flange 17 of the trolley-wheel. The trolley-wheel is prevented from displacement laterally by the flange 17, which depends between and below the separated trolleywires b b.

Having thus described my invention,what I claim, and desire to secure by Letters Patcut, is l l. The combination with the slotted dnit,the conductor therein and the truck running on the trackwav over the conduit p the said conductor and comprising a frame, a portion of which has a ball-and-socket connection with the said depending member g g longitudinally and horizontally extended from the said member g over the trolley.

2. In an electric-railway system, the combination i h the slotted conduit and the don- Witnesses:

Wm. S, BELLoWs, M. A. CAMPBELL. 

